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5. PARAMETERS
5.13 (G) Control parameters
3
4
5
5
5
6
7
8
9
10
• Stop selection is disabled when following functions are operating.
• When Pr.250 ≠ "9999 or 8888", acceleration/deceleration is performed in accordance to the frequency command until the
output is shutoff by turning OFF the start signal.
• When the restart signal is turned ON during the motor coasting, the operation is resumed from Pr.13 Starting frequency.
Start signal operation selection
2-wire type (STF, STR signal)
• The following figure shows the connection in 2-wire type.
• As an initial setting, forward/reverse rotation signals (STF/STR) acts as both start and stop signals. Either one turned ON
will be enabled, and the operation will follow that signal. The motor will perform a deceleration stop when both are turned
OFF (or both are turned ON) during the operation.
• There are methods such as inputting 0 to 10 VDC between the speed setting input terminals 2 and 5, or Pr.4 to Pr.6 multi-
speed setting (fast, medium, slow) for the frequency setting signal. (For multi-speed operation, refer to page 226.)
• By setting Pr.250 = "1000 to 1100, 8888", STF signal becomes start command and STF signal becomes forward/reverse
command.
•By setting Pr.250 = "0 to 100, 1000 to 1100", it will perform coast to stop when the start command is turned OFF.
• The STF and STR signals are assigned to the terminals STF and STR in the initial status. STF signal can be assigned to
a terminal by Pr.178 STF terminal function selection, and STR signal can be assigned to a terminal by Pr.179 STR
terminal function selection.
Power failure stop function (Pr.261)
PU stop (Pr.75)
Deceleration stop due to communication error (Pr.502)
Offline auto tuning (with motor rotation)
Forward
rotation start
Reverse
rotation start
STF
ON
Time
STF
STR
SD
Inverter
STR
ON
10
2
5
Output frequency
Forward
rotation
Reverse
rotation
2-wire type connection example (Pr.250 = "9999")
Start signal
Forward/
reverse
signal
STF
ON
Time
STF
STR
SD
Inverter
STR
ON
10
2
5
Output frequency
Forward
rotation
Reverse
rotation
2-wire type connection example (Pr.250 = "8888")
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